1. abide by(=be faithful to ; obey)忠于；遵守。
2. be absent from…. 缺席，不在
3. absence or mind(=being absent-minded)  心不在焉
4. absorb(=take up the attention of)吸引…的注意力(被动语态):be absorbed in 全神贯注于…近:be engrossed in ; be lost in ; be rapt in ;be concentrated on ; be focused on ; be centered on
5. (be) abundant in(be rich in; be well supplied with) 富于,富有
6. access(to) (不可数名词) 能接近,进入,了解
7. by accident(=by chance, accidentally)偶然地,意外. Without accident(=safely) 安全地,
8. of one’s own accord(=without being asked; willingly; freely)自愿地 ,主动地
9. in accord with 与…一致        / out of one’s accord with 同….不一致
10. with one accord (=with everybody agreeing)一致地
11. in accordance with (=in agreement with)  依照,根据
12. on one’s own account
1) 为了某人的缘故, 为了某人自己的利益
2) (=at one’s own risk) 自行负责
3) (=by oneself)依靠自己
on account 赊账; on account of 因为; on no account不论什么原因也不;of …account 有…..重要性.
13. take…into account(=consider)把...考虑进去
14. give sb. an account of 说明, 解释 (理由)
15. account for (=give an explanation or reason for)  解释, 说明.
16. on account of (=because of) 由于,因为.
17. on no account(=in no case, for no reason)绝不要,无论如何不要(放句首时句子要倒装)
18. accuse…of…(=charge…with; blame sb. for sth. ; blame sth. on sb. ; complain about) 指控,控告
19. be accustomed to (=be in the habit of,  be used to)习惯于.
20. be acquainted with(=to have knowledge of) 了解; (=to have met socially) 熟悉
21. act on 奉行,按照…行动; act as 扮演;   act  for 代理
22. adapt oneself to(=adjust oneself to)       使自己适应于
23. adapt…(for) (=make sth. Suitable for a new need) 改编, 改写(以适应新的需要)
24. in addition (=besides) 此外, 又, 加之
25. in addition to(=as well as, besides, other than)除…外
26. adhere to (=abide by, conform to, comply with, cling to, insist on, persist in, observe, opinion, belief ) 粘附; 坚持, 遵循
27. adjacent(=next to, close to) 毗邻的, 临近的
28. adjust..(to) (=change slightly)调节; 适应;
29. admit of (=be capable of, leave room for)   …的可能，留有…的余地.
30. in  advance (before in time) 预告, 事先.
31. to advantage 有利的,使优点更加突出地.
32. have an advantage over 胜过.
have the advantage of 由于…处于有利条件
have the advantage of sb.知道某人所不知道的事
33. take advantage of (=make the best of, utilize, make use of, profit from, harness)利用.
34. agree with 赞同(某人意见) agree to 同意
35. in agreement (with) 同意, 一致
36. ahead of 在…之前, 超过…;…………….             ahead of time 提前.
37. in the air 1)不肯定, 不具体.  2)在谣传中.
38. above all (=especially, most important of all)     尤其是, 最重要的.
39. in all (=counting everyone or everything, altogether) 总共, 总计
40. after all 毕竟,到底; (not) at all 一点也不;
all at once(=suddenly)突然; once and for all 只此一次; above all 最重要的; first of all 首先; all in all 大体上说; be all in 累极了; all but 几乎.
41. allow for (=take into consideration, take into account) 考虑到, 估计到.
42. amount to (=to be equal to) 总计, 等于.
43. answer for (undertake responsibility for, be liable for, take charge for) 对…负责.
44. answer to (=conform to) 适合,符合.
45. be anxious about 为…焦急不安; 或anxious for
46. apologize to sb. for sth. 为…向…道歉
47. appeal to sb. for sth. 为某事向某人呼吁.   appeal to sb. 对某人有吸引力
48. apply to sb. for sth.  为…向…申请     ;          apply for申请;  apply to 适用.
49. apply to 与…有关;适用
50. approve of (=consent to, be in favor of, favor, agree to, consider good, right) 赞成, approve vt. 批准
51. arise from(=be caused by) 由…引起.
52. arrange for sb./sth. to do sth.  安排…做…
53. arrive on 到达; arrive at 到达某地(小地方);得出,作出;  arrive in 到达某地(大地方);
54. be ashamed of (=feel shame, guilt or sorrow because of  sth. done) 以…为羞耻
55. assure sb. of sth. (=try to cause to believe or trust in sth.) 向…保证, 使…确信.
56. attach(to) (=to fix, fasten; join) 缚, 系 ,结
57. make an attempt at doing sth. (to do sth.) 试图做…
58. attend to (=give one’s attention, care and thought)注意,照顾;attend on(upon)(=wait upon, serve, look after) 侍候,照料
59. attitude to/ toward …对…的态度.看法
60. attribute…to…(=to believe sth. to be the result of…)把..归因于.., 认为..是..的结果
61. on the average (=on average, on an average) 平均
62. (be) aware of (=be conscious of , having knowledge or consciousness)意识到,知道.
63. at the back of (=behind) 在…后面
64. in the back of 在…后部(里面); on the back of 在…后部(外面); be on one’s back(=be ill in bed) 卧病不起.
65. at one’s back(=supporting or favoring sb.) 支持,维护; have sb. at one’s back 有…支持, 有…作后台
66. turn one’s back on sb. (=turn away from sb. in an impolite way) 不理睬(某人),背弃,抛弃
67. behind one’s back 背着某人(说坏话)
68. be based on / upon 基于
69. on the basis of  根据…, 在…基础上
70. beat…at  在…运动项目上打赢
71. begin with 以…开始. to begin with (=first of all) 首先, 第一(经常用于开始语)
72. on behalf of (=as the representative of)  以…名义
73. believe in(=have faith or trust in; consider sth./sb. to be true) 相信,依赖,信仰.
74. benefit (from)  受益,得到好处.
75. for the benefit of  为了…的利益(好处)
76. for the better  好转
77. get the better of (=defeat sb.) 打败, 胜过.
78. by birth 在出生上,论出身,按血统 at birth 在出生时; give birth to 出生
79. blame sb. for sth. 因…责备某人        .             blame sth. on sb. 把…推在某人身上
80. in blossom开花(指树木) be in blossom开花(强调状态) come into blossom开花(强调动作)
81. on board 到船上, 在船上, 上火车或飞机
82. boast of (or about) 吹嘘
83. out of breath 喘不过气来
84. in brief(=in as few words as possible)简言之
85. in bulk 成批地,不散装的
86. take the floor 起立发言
87. on  business 出差办事.
88. be busy with sth.于某事。   be busy doing sth. 忙于做某事
89. last  but  one  倒数第二.
90. but  for (=without)  要不是. 表示假设
91. buy sth. for…money  用多少钱买
92. be capable of  能够, 有能力
be capable of being +过去分词:是能够被…的
93. in any case(=for love or money, at any rate, at any price, at any cost, whatever happens; anyhow)无论如何
94. in case (=for fear that) 万一;
95. in case of (=in the event of)如果发生…万一
   in the case of 至于…, 就…而言
96. in no case在任何情况下都不(放句首倒装句)
97. be cautious of 谨防
98. center one’s attention on(=focus one’s attention on) 把某人的注意力集中在…上
99. be certain of (=be sure of) 有把握, 一定.